Singletree attachment.



Patented Mar. 4, |902.

(No Model.)

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UNITED STATES JAMES HAFER, SR., OF AUGUSTA,KENTUCKY.

SINGLETREE ATTACHMENT.

SPECIFICATION forming part of Letters Patent N o. -694,544, dated March4, 1902. Application filed October 16, 1901. Serial Nol 78,844. (Nomodel.)

T0 all whom t may concern: v

Be it known that l, JAMES HAFER, Sr., a citizen of the United States,residing'at Augusta, in the county of Bracken and State of Kentucky,haveinvented a new and useful Singletree Attachment, (Oase A,) of whichthe fol'- lowing is a specification.

This invention relates to's'ingletree attachments.

The obj ect is to provide a sim ply-constructed and thoroughly-efficientform of antirattling singletree attachment which may be readily suppliedto a singletree already equipped with another form of attachment andwhich in use will positively prevent any rattling even should the nutholding the singletree-bolt in position on the shaft of the cross-barwork loose.

A furtherobject-is to provide an attachment of the character specifiedhaving its parts so constructed and arranged as in operation to performthe double functions of an antirattler-and a nut-lock.

With these and other objects in view, as will appear as the nature ofthe invention is better understood, the same consists in the novelconstruction and combination of parts Vof a singletree attachment, aswill be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, andin which like vn u metals of reference indicate corresponding parts,there is illustrated two forms of the embodiment of the inventioncapable of carrying the same into practical operation, it beingunderstood that the elements ltherein exhibited may be varied or changedas to shape,

proportion, and exact manner of assemblage without departing from thescope of the invention, and in these drawings- Figure l is a view insectional elevation showing one form of the attachment associated with asingletree and a shaft Ycross-bar. Fig. 2 is a view in transversesection. Fig. 3 is a detached detail view of a spring-engaging socket.

Referring to the drawings, l designates an ordinary singletree, 2 ashaft cross-bar, and 3 and 4t Wear-plates carried, respectively, by theunder side of the .singletree and the upper side of the cross-bar andoperating in the usual manner to hold the parts spaced at the torymovement whatever.

proper distance apart. Passing through the singletree is a bolt 5,having its upper end provided with a curved head 6 to embracethesingletree, as usual, the lower end of the bolt being projected throughan orifice 7 in the cross-bar, the orifice being of greater diameterthan the bolt to receive and house the antirattler 8, the samecomprising a spiral spring mountedupon that portion of the bolt withinthe orilice and bearing at its upper end against the wear-plate 4. Thespring 8 is of a length to project beyond the lower side of thecross-bar and is engaged by a spring-engaging socket 9, the opening inthe socket that engages the spring being screwthreaded Yto permit of itsbeing screwed onto the spring, and thus held associated therewithagainst accidental separation. The lower extremity of the bolt 5 isengaged by anut -10,'which is adapted to be turned against the socket 9,and thus force the latter against the under side of the cross-bar,thus'depressing the spring and causing it to draw the wearplate of thesingletree tightly down on the Wear-plate of the cross-bar, and thuseectively prevent any rattling, the pressure eX- ert'ed by the spring onthe singletree being constant, and therefore operating to take up anywear of the wear-'plates which would result in rattling. Inaddition topreventing rattling the spring also operates in conjunction with thevsocket 9 as a n ut-lock, as by the constant pressure exerted upon thenut 10 thswill be prevent-ed from working loose from the bolt. Theobject for having the spring threaded into the socket is that should thenut l0 work loose on the bolt, and thus permit the socket to move out ofengagement with the cross-bar, the socket would still be held againstrattling, as that portion of the spring Within the orifice would operateeffectively to hold the socket against any vibrai It will be obvious,however, as will presently appear, that the same effect would resultwere the spring seated in a smooth opening in the socket, as

in either event the downward pressure'of the spring, together with itscoaction with the walls of the opening in the socket, would prevent anymovement of the socket on the bolt.

It will be seen from the foregoing description that to adapt theantirattler to the crossbar of a pair of shafts will only require theprovision of an orice for lthe reception of the bolt 5 somewhat largerthan that usually employed. In either case, however, the bolt 5 has tobe made somewhat longer than that usually employed; but this will notresult in any objectionable cost to the employment of the devicei Havingthus fully described my invention, what I claim as new is- 1. Thecombination with a singletree and a cross-bar, of a bolt projectingthrough the parts, centrally of their Width and constituting the soleassembling means therefor, a spring surrounding that portion of the boltwithin the cross-bar, a socket engaging the lower end of the spring, anda nut on the bolt for forcing the socket against the cross-bar.

2. The combination with a singletree and a cross-bar, of a boltprojecting through the parts, a spring surrounding that portion of thespring within the cross-bar, a socket having a threaded engagement withthe lower end of the spring, and a nut on the bolt for forcing thesocket against the cross-bar.

In testimony that I claim the foregoing as my own I have hereto a'xed mysignature in the presence of two witnesses.

.I AMES HAFER, SR.

Witnesses:

FRANK CLENNY, C. BARTLETT.

